CVE-2026-115817

Full vulnerability record from the local CVENow database.

Description

Starman versions before 0.4019 for Perl allow a stalled request body to hold a worker indefinitely, as read_timeout covers only the headers. Content-Length and chunked request bodies are read with blocking reads and no deadline. A client that sends complete headers and then stalls or trickles the body keeps the worker waiting until it disconnects. A remote attacker can take every worker with a few such connections, five with the default worker count, so the server stops answering requests. Version 0.4019 applies read_timeout to each wait for body data and adds a body_timeout limit, 300 seconds by default, on the total time to read a body.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Deferred

Source identifier

9b29abf9-4ab0-4765-b253-1875cd9b441e

Published

2026-10-25 17:17:00.940000

Last modified

2026-10-26 17:13:55.323000

View original CVE JSON

{
  "id": "CVE-2026-115817",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-10-25T17:17:00.940",
  "lastModified": "2026-10-26T17:13:55.323",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Starman versions before 0.4019 for Perl allow a stalled request body to hold a worker indefinitely, as read_timeout covers only the headers.\n\nContent-Length and chunked request bodies are read with blocking reads and no deadline. A client that sends complete headers and then stalls or trickles the body keeps the worker waiting until it disconnects.\n\nA remote attacker can take every worker with a few such connections, five with the default worker count, so the server stops answering requests.\n\nVersion 0.4019 applies read_timeout to each wait for body data and adds a body_timeout limit, 300 seconds by default, on the total time to read a body."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "Starman",
          "modules": [
            "Starman"
          ],
          "programFiles": [
            "lib/Starman/Server.pm"
          ],
          "programRoutines": [
            {
              "name": "Starman::Server::_prepare_env"
            }
          ],
          "repo": "https://github.com/miyagawa/Starman",
          "packageURL": "pkg:cpan/Starman",
          "versions": [
            {
              "version": "0",
              "lessThan": "0.4019",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "weaknesses": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/miyagawa/Starman/commit/89dffd3bdc9baa1cbe1b48a43615586ba2588558.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://github.com/miyagawa/Starman/commit/a30533c03051502d6b67cd48b3a95a61e129691b.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/MIYAGAWA/Starman-0.4019/changes",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    }
  ]
}